16899344 has 120 divisors (see below), whose sum is σ = 43538880. Its totient is φ = 6209280.

The previous prime is 16899331. The next prime is 16899347. The reversal of 16899344 is 44399861.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 16899295 and 16899304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16899347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392987 + ... + 393029.

It is an arithmetic number, because the mean of its divisors is an integer number (362824).

Almost surely, 2^16899344 is an apocalyptic number.

16899344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16899344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21769440).

16899344 is an abundant number, since it is smaller than the sum of its proper divisors (26639536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16899344 is a wasteful number, since it uses less digits than its factorization.

16899344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 92 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 16899344 is about 4110.8811707467. The cubic root of 16899344 is about 256.6196739364.

The spelling of 16899344 in words is "sixteen million, eight hundred ninety-nine thousand, three hundred forty-four".